<!DOCTYPE html>
<style>
.container {
  position: relative;
  width: 250px;
  height: 300px;
  border: 1px solid blue;
}

.float1 {
  position: absolute;
  width: 100px;
  height: 50px;
  background-color: green;
}

.float2 {
  position: absolute;
  top: 50px;
  width: 180px;
  height: 50px;
  background-color: lightgreen;
}

.box {
  position: absolute;
  left: 180px;
  width: 30px;
  height: 80px;
  background-color: blue;
}
</style>

<div class="container">
  <div class="float1"></div>
  <div class="float2"></div>
  <div class="box"></div>
</div>
<p>The test pass if the inline blue box does not overlap any of the green float boxes.</p>
